Key statistics
Satellite DELTA 2 R/B at a glance.
Uptime
10345
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
86.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for DELTA 2 R/B.
Object identification
Identified? True
Debris? False
Object name: DELTA 2 R/B
International designator: 1997-020F
Object number (NORAD): 24797
Object ID (CCSDS): 24797
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 99.487 minutes
Inclination: 86.8996 deg
SMA: 7112.196 km
Apoapsis: 888.371 km
Periapsis: 579.751 km
RAAN: 334.5562 deg
Eccentricy: 0.02169659
Argument of periapsis: 34.337 deg
Mean anomaly: 77.8176 deg
Mean motion: 14.47428744 rev/day
Mean motion (dot): 0.00000841 rev/day2
B* drag term: 0.00016502404 1/REarth
Two-line elements (TLE)
Creation date: Aug. 31, 2025, 2:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 30, 2025, 6:41 p.m. UTC
TLE line 0: 0 DELTA 2 R/B
TLE line 1: 1 24797U 97020F 25242.77865041 .00000841 00000-0 16502-3 0 9990
TLE line 2: 2 24797 86.8996 334.5562 0216966 34.3370 77.8176 14.47428744490571
Live tracking on map
Real-time ground track for satellite DELTA 2 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object DELTA 2 R/B.
Associated space launch
Iridium provides global mobile telecommunications services using a constellation of 66 low earth orbit satellites in a 86.4° inclined orbit. Although 77 satellites were originally envisioned for the system and spawned the name based on the 77th element in the periodic table, the system has been scaled back. Motorola's Satellite Communications Group designed and manufactured the Iridium satellites with Lockheed Martin providing the LM-700A spacecraft buses.
DELTA 2 R/B was lifted into orbit during the mission ‘Delta II | Iridium 04 to 08’, on board a Delta II space rocket.
The launch took place on May 5, 1997, 2:55 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta II | Iridium 04 to 08
Agency: N/A
Status: Launch Successful
Launch date: May 5, 1997, 2:55 p.m. UTC
Rocket: Delta II
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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